Relay protection information standardization processing method based on knowledge graph

Abstract

A relay protection information standardization processing method based on a knowledge graph relates to the technical field of power grid relay protection, and is realized in a process of performing standardization processing on a relay protection information text on the basis of establishing a standardization model. The standardization model is divided into three levels according to a large type, a small type and a manufacturer of the relay protection setting value information to form a tree topology structure, and a first extraction value of the large type and a second extraction value of the small type of the relay protection setting value information are defined; the process of processing the relay protection information text comprises the following steps of: a, scanning and reading the relay protection constant value information text of each manufacturer; b, extracting small types and large types to which all constant value information of each manufacturer belongs through the first extraction value and the second extraction value, forming a mapping relation, and storing the mapping relation in a standard database; and c, formatting the relay protection setting value information after the mapping is formed.

Description

technical field [0001] The invention relates to the technical field of power grid relay protection, in particular to a processing method for standardization of relay protection information based on a knowledge graph. Background technique [0002] The whole composed of substations of various voltages and transmission and distribution lines in the power system is called the power network, or power grid for short, and it includes three units: substation, transmission, and distribution. [0003] Relay protection is to automatically cut off the faulty equipment from the system in the shortest possible time and in the smallest area when a fault or abnormal working condition occurs in the power system, or send a signal for the on-duty personnel to eliminate the source of the abnormal working condition, so as to alleviate or It is a measure to avoid damage to equipment and impact on power supply in adjacent areas. [0004] Relay protection devices are widely used in power systems, ...

AI Technical Summary

Problems solved by technology

[0005] With the development of smart grid construction, non-standard problems such as protection alarm information, action information, and intermediate contact information of different relay protection manufacturers have become increasingly prominent, affecting power grid operation, abnormal analysis, and accident handling. It is quite difficult. The online monitoring information, protection alarm information, and protection action information sent to the monitoring background by the protection devices of various manufacturers on site have not passed standardized tests. Once the protection malfunctions or refuses to operate, no message information is sent to the background or The inaccurate information in the background will cause the staff to be unable to accurately identify and solve problems in a timely manner, which will affect the operational safety of the site